ICAR JRF Agronomy Previous Year Paper 2018 — Agri Master Mind
Who is the father of agro-meteorology in India? (JRF AGRO-2018)
- Swaminathan
- L.A. Ramdas
- Krishnan
- Muralikrishna Nair
Which one of the following is the error d.f. for a RCBD experiment with six treatments replicated five times? (JRF AGRO-2018)
- 15
- 12
- 20
- 24
Which one of the following is recommended to measure water flow from a pipe? (JRF AGRO-2018)
- Parshall flume
- V-notch
- Venturi meter
- Cut throat flume
Which one of the following is the crop response curve to applied fertilizer? (JRF AGRO-2018)
- Quadratic
- Linear
- Hyperbolic
- Asymptotic
Which one of the following is the most popular agro-technology evolved by ICRISAT? (JRF AGRO-2018)
- Tie ridging
- Graded furrow
- Broad bed and furrow
- Vertical Mulching
Which one of the following is the water flow one acre-inch-day? (JRF AGRO-2018)
- 0.042 cu ft/sec
- 4.2 cu ft/sec
- 42 cu ft/sec
- 0.42 cu ft/sec
Which one of the following States is known as the Rice Bowl of India? (JRF AGRO-2018)
- Andhra Pradesh
- Chhattisgarh
- Uttar Pradesh
- Kerala
Which one of the following Crops is commonly associated with Orabanche Weed? (JRF AGRO-2018)
- Sorghum
- Rice
- Tomato
- Maize
Which one of the following is the unit value of Ammonium sulphate containing 20% N and costs Rs 640/t? (JRF AGRO-2018)
- Rs 32/kg N
- Rs 3.2/kg N
- Rs 320/kg N
- Rs 64/kg N
Which one of the following is the equivalent acidity in kg/100 kg of urea fertilizer? (JRF AGRO-2018)
- 110
- 80
- 48
- 92
Which one of the following clay mineral rich in potassium? (JRF AGRO-2018)
- Illite
- Vermiculite
- Kaolinite
- Silicate
Which one of the following element responsible for pollen development? (JRF AGRO-2018)
- Calcium
- Nitrogen
- Boron
- Magnesium
Which one of the following weeds is having the smallest seed size? (JRF AGRO-2018)
- Striga
- Achyranthes aspera
- Eleusine coracana
- Mesquite
Which one of the following instrument measures Fibre fineness? (JRF AGRO-2018)
- Micronaire
- Digital Fibrograph
- Pressely tester
- Odometer
Which one of the following Primitive type of corn has less economic importance? (JRF AGRO-2018)
- Soft corn
- Waxy corn
- Pod corn
- Flint corn
Which one of the following is an area of a crop commanded by one cusec flow in a season? (JRF AGRO-2018)
- Delta
- Duty
- Water expense
- Head
Which one of the following Country has International Development Research Centre? (JRF AGRO-2018)
- Italy
- Canada
- USA
- Switzerland
Which one of the following Climatic region is predominant in acid soils? (JRF AGRO-2018)
- Temperate region
- Arid region
- Humid region
- Snowfall region
Who is the author of the textbook of "Irrigation theory and practice"? (JRF AGRO-2018)
- Panda SC
- Y B Morachan
- Michael A M
- Reddy S R
Which one of the following is the data distribution when mean and median values are the same? (JRF AGRO-2018)
- Poisson
- Gamma
- Gaussian
- Normal
Which one of the following equations is used to calculate the discharge through an orifice? (JRF AGRO-2018)
- Q = 0.61 x 10^3 a √2gh
- Q = 0.0186 LH^(3/2)
- Q = 0.16 x 10^2 a √2gh
- Q = 0.0138 H^7
Which one of the following is associated with the rhizosphere? (JRF AGRO-2018)
- Root zone
- Soil depth
- Soil-root interface
- Microbial zone
Which one of the following is the C:N ratio for most of the oil cakes? (JRF AGRO-2018)
- 4.51388888888889E-02
- 0.0625
- 7.63888888888889E-02
- 0.736111111111111
Which one of the following correlation type when one variable increases the other tends to increase? (JRF AGRO-2018)
- Positive
- Negative
- Multiplicative
- Zero
Which one of the following is the cropping intensity if the total net cultivated area is 9.0 ha and the total cropped area is 18.0 ha? (JRF AGRO-2018)
- 0.5
- 2
- 1.5
- 1
Which one of the following is the 1000 seed weight of soybean grown at 30 x 10 cm when seed rate is 75 kg ha⁻¹? (JRF AGRO-2018)
- 225 g
- 22.5 g
- 750 g
- 75 g
Which one of the following is ICAR's research repository for research management? (JRF AGRO-2018)
- KRISHI
- UNNATI
- DHAN
- SANGRAH
Which one of the following is the number of AERs in India as per NBSS & LUP? (JRF AGRO-2018)
- 8
- 15
- 21
- 131
Which one of the following Soil crusting is a problem? (JRF AGRO-2018)
- Vertisol
- Alfisol
- Inceptisol
- Andisol
Which of the following is a winter annual weed? (JRF AGRO-2018)
- Commelina benghalensis
- Cassia tora
- Ageratum conyzoides
- Chenopodium album
Which one of the following describes the characteristics of sedges? (JRF AGRO-2018)
- Triangular stem tristichus leaf arrangement and absence of ligules
- Triangular stem distichaus leaf arrangement and absence of ligules
- Cylindrical stem distichaus leaf arrangement and presence of ligules
- Cylindrical stem distichaus leaf arrangement and absence of ligules
Which one of the following stimulates the germination of Striga seeds? (JRF AGRO-2018)
- MH
- IAA
- Ethylene
- Gibberellin
Which one of the following scientists coined the term allelopathy in 1937? (JRF AGRO-2018)
- Hans Molisch
- Rice
- Shckney and Hoy
- Davis
Which one of the following is the first herbicide resistant weed reported in India? (JRF AGRO-2018)
- Rumex crispus (in world)
- Trianthema portulacastrum
- Phalaris minor (in India 1991)
- Avena fatua
Which one of the following is the group of herbicide affecting synthesis of amino acids like valine, leucine, and isoleucine? (JRF AGRO-2018)
- Sulfonyl ureas
- Triazines
- Dinitroaniline
- Thiocarbamates
Which one of the following designs is recommended for experiments with homogeneous experimental units? (JRF AGRO-2018)
- CRD
- RBD
- Split plot
- Strip plot
Which one of the following is the delta of crop if the duty of water for a base period of 120 days is equal to 1200 ha? (JRF AGRO-2018)
- 8.64 cm
- 64.8 cm
- 48.6 cm
- 86.4 cm
Which one of the following is subjected to photo-decomposition? (JRF AGRO-2018)
- Fluchloralin
- Butachlor
- Orehlachlor
- Quizalofop-ethyl
Which one of the following is an asymmetrical triazine? (JRF AGRO-2018)
- Atrazine
- Simazine
- Ametrin
- Metribuzin
Which one of the following is used for brown manuring in rice? (JRF AGRO-2018)
- 2, 4-D
- Bispyribac Na
- Fenoxaprop-p-ethyl
- Pretilachlor
Which one of the following crop yield both oil and fiber? (JRF AGRO-2018)
- Jute
- Sann hemp
- Linseed
- Niger
Which one of the following rainfall quantity is required in a day of 24 hours to call it a rainy day? (JRF AGRO-2018)
- 0.5 mm or more
- 1.0 mm or more
- 2.5 mm or more
- 5.0 mm or more
Which one of the following defines differential moisture content at a given suction during wetting and drying? (JRF AGRO-2018)
- Heterosis
- Sorption
- Hysteresis
- Desorption
Which one of the following microorganism oxidizes nitrite to nitrate? (JRF AGRO-2018)
- Nitrosomonas
- Azotobacter
- Clostridium
- Nitrobacter
Which one of the following is associated with Aroma in rice? (JRF AGRO-2018)
- 2-Acetyl-1-Pyrroline
- Erucic acid
- Thioester
- Linolenic acid
Which one of the following scientists defined the criteria of essentiality of nutrients in plants? (JRF AGRO-2018)
- DJ Nicholas
- Arnon and Stout
- JS Kanwar
- Rajendra Prasad
Which one of the following elements is an important constituent of chlorophyll? (JRF AGRO-2018)
- Mg
- Zn
- Mo
- B
Which one of the following is responsible for pulses to perform better after direct seeded rice than that after puddle transplanted rice? (JRF AGRO-2018)
- Improved soil texture
- Better soil micro nutrient status
- Improved soil structure
- Better soil macro nutrient status
Mawsynram, the place with the highest rainfall in India is located in: (JRF AGRO-2018)
- Assam
- West Bengal
- Meghalaya
- Kerala
Trickle irrigation is recommended for which one of the following crops? (JRF AGRO-2018)
- Mango
- Coriander
- Greens
- Radish
Which one of the following crops is otherwise known as kenaf? (JRF AGRO-2018)
- Mesta
- Sunhemp
- Agave
- Jute
Which one of the following is the other parent to be crossed with Dee-Goo-Woo-Gen to develop the semi-dwarf variety IR-8? (JRF AGRO-2018)
- Jaya
- TN-1
- Peta
- Vijaya
Which one of the following is determined by Tetrazolium test? (JRF AGRO-2018)
- Seed purity
- Seed quality
- Seed germination
- Seed viability
To which one of the following common bread wheat (2n=42) belong? (JRF AGRO-2018)
- Hexaploid
- Tetraploid
- Triploid
- Diploid
Photosynthetically active radiation comes under which of the following spectral wavelength? (JRF AGRO-2018)
- 0.4 to 0.7 µm
- 1.0 to 4.0 µm
- 0.1 to 0.3 µm
- 4.0 to 7.0 µm
Which one of the following fungi is used as a bio-control agent of plant diseases? (JRF AGRO-2018)
- Beauveria bassiana
- Metarhizium anisopliae
- Verticillium lecani
- Trichoderma harzianum
Which one of the following terms is used when the tax rate increases with the level of income and vice versa? (JRF AGRO-2018)
- Proportional taxation
- Digressive taxation
- Regressive taxation
- Progressive taxation
Out of the following quantity, which is required to irrigate 1.0 ha land area with 50 mm depth of irrigation? (JRF AGRO-2018)
- 100 liters
- 1000 liters
- 10000 liters
- 500000 liters
The ICAR was established during which of the following year? (JRF AGRO-2018)
- 1929
- 1949
- 1962
- 1972
Which of the following is a stemless perennial sedge? (JRF AGRO-2018)
- Palmarosa
- Lemon grass
- Vetiver
- Java citrenella
Which of the following is a non-selective, foliage active translocated herbicide? (JRF AGRO-2018)
- Glyphosate
- Paraquat
- Trifluralin
- Alachlor
If a crop is to be irrigated at 0.8 IW:CPE with 60mm depth, after which of the following should it be irrigated? (JRF AGRO-2018)
- 60 mm CPE
- 75 mm CPE
- 80 mm CPE
- 70 mm CPE
Which one of the following moisture will be available if the field capacity is 18% and permanent wilting point is 6%? (JRF AGRO-2018)
- 0.08
- 0.1
- 0.12
- 0.14
Which one of the following terms is coined when plants cannot absorb any water and die eventually? (JRF AGRO-2018)
- Field capacity
- Ultimate wilting point
- Hygroscopic water
- Permanent wilting point
Iron is absorbed by plants in which of the following forms? (JRF AGRO-2018)
- Fe2+
- Fe+
- Fe
- Fe3+
Which one of the following is the nutrient that has a key role in biological N-fixation? (JRF AGRO-2018)
- Nitrogen
- Phosphorus
- Chlorine
- Molybdenum
Which one of the following is the unit of water use efficiency? (JRF AGRO-2018)
- kg-ha/mm
- kg/ha-mm
- kg/mm-ha
- ha/kg-mm
Accumulation of which of the following is considered as a good indicator for water stress? (JRF AGRO-2018)
- Cysteine
- Methionine
- GA
- Proline
Concentration of which of the following is high in a waterlogged soil? (JRF AGRO-2018)
- Hydrogen
- Methane
- Oxygen
- Carbon monoxide
For which of the following soils is Rock phosphate a suitable fertilizer? (JRF AGRO-2018)
- Saline
- Alkaline
- Acidic
- Neutral
Which one of the following botanical is referred to Potato tuber? (JRF AGRO-2018)
- Rhizome
- Bulb
- Stolon
- Sucker
Which one of the following is responsible for run-off? (JRF AGRO-2018)
- Soil slope
- Low rate of infiltration
- High intensity rainfall
- All of these
Which one of the following type of nozzle is suitable for application of contact type of herbicide on dense weedy patches? (JRF AGRO-2018)
- Flat-fan
- Solid cone
- Flood-jet
- Centrifugal
Which one of the following is a physical method of weed control? (JRF AGRO-2018)
- Crop rotation
- Stale seed bed
- Mowing
- Summer fallowing
Which one of the following type of fertilizers has Uranium-238 contamination? (JRF AGRO-2018)
- Nitrogenous
- Phosphatic
- Potassic
- Sulphur containing
Which one of the following is hydrolase enzyme occurring in soil? (JRF AGRO-2018)
- Glutaminase
- Catalase
- Peroxidase
- Dehydrogenase
Which one of the following crop is called biological plough of soil? (JRF AGRO-2018)
- Green gram
- Black gram
- Pigeonpea
- Soybean
In which of the following advancement of monsoon in India takes place? (JRF AGRO-2018)
- Kerala Coast
- Andhra Coast
- Pondicherry
- Mumbai coast
Which one of the following terminology for viruses which feed on bacteria? (JRF AGRO-2018)
- Virion
- Viriodes
- Bacteriophage
- Rota virus
Which one of the following explains the relationship between growth duration and temperature? (JRF AGRO-2018)
- Heat unit
- Photoperiodism
- Thermo sensitivity
- Photosynthetic pathway
Which one of the following crop growth phases influenced most by relative length of day and night? (JRF AGRO-2018)
- Seed germination
- Heat production
- Floral initiation
- Fruit maturity
Which one of the following Country leads in maximum groundnut production in the world? (JRF AGRO-2018)
- India
- China
- Brazil
- Nigeria
Which one of the following is responsible for Rice tungro virus transmission? (JRF AGRO-2018)
- Mites
- Green leaf hopper
- Stem borer
- White fly
Which one of the following is Sesame plant response to day length? (JRF AGRO-2018)
- Qualitative short day plant
- Quantitative short day plant
- Qualitative long day plant
- Quantitative long day plant
Which one of the following HCN content in sorghum results in animal toxicity? (JRF AGRO-2018)
- 100 ppm
- 200 ppm
- 250 ppm
- 300 ppm
Which one of the following is the genera of Rapeseed-mustard? (JRF AGRO-2018)
- Brassica
- Brassica and Eruca
- Brassica and Sinapsis
- Brassica Eruca and Sinapsis
Which fatty acid in mustard oil imparts longer shelf life? (JRF AGRO-2018)
- Oleic acid
- Linoleic acid
- Linolenic acid
- Stearic acid
Which one of the following is the first hybrid of sunflower released in India? (JRF AGRO-2018)
- BSH-1
- Morden
- DSH-1
- DRSH-1
Which one of the following crop has the longest crop-weed competition critical period? (JRF AGRO-2018)
- Chick pea
- Lentil
- Horse gram
- Pigeon pea
Which one of the following element promotes formation of vitamin A in plants? (JRF AGRO-2018)
- Fe
- Cu
- Mn
- Zn
Which one of the following element largely influence calcium metabolism in plants? (JRF AGRO-2018)
- Boron
- Iron
- Nitrogen
- Copper
Which one of the following is the selenium form in selenite? (JRF AGRO-2018)
- Se
- SeO2-
- SeO32-
- SeO2
Which one of the following is not a physical indicator of soil? (JRF AGRO-2018)
- Consistence
- Penetration resistance
- Buffering capacity
- Soil strength
Which one of the following is volume of water necessary to cover an area of 1.0 ha to a depth of 5 cm? (JRF AGRO-2018)
- 100 M³
- 500 M³
- 50 M³
- 1000 M³
Which one of the following is associated with opening and closing of stomata? (JRF AGRO-2018)
- Sunlight
- Water pressure
- Transpiration
- Temperature
Which one of the following is the science which deals with the study of home of crops? (JRF AGRO-2018)
- Crop ecology
- Plant ecology
- Ecology
- Agricultural ecology
Which one of the following soil type will have maximum soil erodability to factor? (JRF AGRO-2018)
- Red loam
- Clay loam
- Alluvial
- Sandy loam
Which one of the following farming systems receives average annual rainfall > 1150 mm? (JRF AGRO-2018)
- Dry farming
- Dry land farming
- Dry land agriculture
- Rainfed farming
Which one of the following is measured by Pyranometer? (JRF AGRO-2018)
- Light duration
- Solar radiation
- Evaporation rate
- Wind speed
In which one of the following Country Hybrid rice of commercial production was first evolved? (JRF AGRO-2018)
- India
- China
- Japan
- USA
Which one of the following is considered when the calculated F is greater than table F value at 5% only, the differences in treatments is? (JRF AGRO-2018)
- Significant
- Highly significant
- Non significant
- At par
Which one of the following developed Indore method of composting? (JRF AGRO-2018)
- Richards
- Howard
- Acharya
- Flower
Which one of the following term is used for the pressure exerted by water vapor in a saturated state? (JRF AGRO-2018)
- Vapor pressure
- Saturation Vapor Pressure
- Partial pressure
- Vapor pressure deficit
Which one of the following color of the tag is used for foundation stage seed? (JRF AGRO-2018)
- White
- Golden
- Blue
- Red
Which one of the following farming system where farmers move seasonally with their herd? (JRF AGRO-2018)
- Sedentary farming
- Subsistence farming
- Nomadic farming
- Arable farming
Which one of the following quantity of fresh biomass is added by sunhemp green manure in 50-60 DAS? (JRF AGRO-2018)
- 15-25 t
- 35-50 t
- 60-75 t
- 80-95 t
In which one of the following shifting cultivation, locally known as 'Jhuming' is widely practiced? (JRF AGRO-2018)
- North-East India
- Rajasthan
- Central Himalaya
- Karnataka
Phalaris minor is also known as? (JRF AGRO-2018)
- Barmuda grass
- Canary grass
- Kans
- Water Hyacinth
One acre is equivalent to? (JRF AGRO-2018)
- 1,800 ha
- 0.652 ha
- 0.404 ha
- 0.08 ha
Smog is produced due to? (JRF AGRO-2018)
- Air and metal dust
- Water and nitrogen oxide
- Smoke and fog
- None
Which one of the following instrument is used to measure wind speed? (JRF AGRO-2018)
- Windvane
- Anemometer
- Hygrometer
- Thermometer
Which of the following process is related to transpiration? (JRF AGRO-2018)
- Osmosis
- Diffusion
- Activated transport
- Facilitated diffusion
One kilogram of nitrogen is equivalent to which of the following quantity of urea? (JRF AGRO-2018)
- 2.17 kg urea
- 3.22 kg urea
- 4.22 kg urea
- 1.75 kg urea
Which of the following salt is predominant in saline water? (JRF AGRO-2018)
- Sodium carbonate
- Sodium chloride
- Magnesium Sulphate
- Calcium chloride
Which one of the following terms is used to refer to the number of cigarettes that can be made out of one pound of tobacco? (JRF AGRO-2018)
- Curing Quality
- Burning quality
- Filling quality
- Priming quality
Which one of the following antioxidants is present in sesame oil? (JRF AGRO-2018)
- Sesamin
- Aspergillus
- Argenin
- Canola
Cedrus deodara is famous for making of which of the following? (JRF AGRO-2018)
- Pencils
- Plywood
- Packing
- Paper
The areas suffering from non-availability of groundwater due to overexploitation are popularly referred to as which of the following? (JRF AGRO-2018)
- Dark areas
- Shallow areas
- Pink areas
- Degraded areas
If the rate of application per hectare is 0.75 kg a.i. per hectare and concentration of herbicide is WP 75%, then required quantity is which of the following? (JRF AGRO-2018)
- 0.75 kg/ha
- 1.0 kg/ha
- 1.25 kg/ha
- 1.50 kg/ha
Which of the following term is used for the system of raising arable crops along with the fruit trees? (JRF AGRO-2018)
- Agri Silvicluture
- Agri horticulture
- Horti- pastoral
- Silvipasture
Depth of sowing depends on which of the following? (JRF AGRO-2018)
- Seed size
- Seed shape
- Seed quality
- Seed viability
Small plants may suffer from deficient oxygen when covered with densely packed snow due to which of the following condition? (JRF AGRO-2018)
- Heaving
- Desiccation
- Suffocation
- Chilling
The harvestable product of a tea plant under commercial plantation is: (JRF AGRO-2018)
- Seed
- Tender shoot
- Bark
- Root
Tea plant in natural growing condition can be termed as which of the following: (JRF AGRO-2018)
- Shrub
- Vine
- Small tree
- Herb
For which of the following reasons are shade trees grown in a tea plantation? (JRF AGRO-2018)
- Maintain optimum temperature
- Provide comfort to the tea pluckers
- Add organic matter to soil
- Reduce impact of rainfall intensity
Manuring in mature tea is done on the basis of which of the following? (JRF AGRO-2018)
- Soil nutrient status
- Plant nutrient status
- Amount of rainfall
- Yield of crop